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  1. Custom Fit Vehicle Wiring
  2. Tekonsha
  3. Custom Fit
  4. Trailer Hitch Wiring
  5. 7 Round - Blade
  6. No Converter
Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter - 7 Way Trailer Connector

Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter - 7 Way Trailer Connector

Our Price: $155.59
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Custom Fit Vehicle Wiring

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22112 - No Converter Tekonsha Custom Fit Vehicle Wiring
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Replace the damaged 7-way, RV-style trailer connector on your vehicle with this T-One harness. ModuLite reduces strain on wiring system. Brake controller adapter plugs in beneath your dash and lets you easily plug in your electric brake controller. 1-800-940-8924 to order Tekonsha custom fit vehicle wiring part number 22112 or order online at Free expert support on all Tekonsha products. Great prices and Fastest Shipping for Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter - 7 Way Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
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  • Reviews (42)
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Tekonsha Custom Fit Vehicle Wiring

  • Custom Fit
  • Trailer Hitch Wiring
  • 7 Round - Blade
  • No Converter
  • Tekonsha

Replace the damaged 7-way, RV-style trailer connector on your vehicle with this T-One harness. ModuLite reduces strain on wiring system. Brake controller adapter plugs in beneath your dash and lets you easily plug in your electric brake controller.


  • Towing prep kit replaces damaged factory 7-way, blade-style trailer connector at the back of your vehicle
    • Enables your truck to power your trailer's signal lights
    • Compatible with 4-pole, 5-pole, and 6-pole adapters (sold separately)
  • T-One connects quickly and easily
    • Plug into connection points behind tail lights
    • Run body harness up to car battery
  • Included tail light converter ensures that your vehicle's wiring matches that of your trailer
  • Wiring adapter eases installation of your electric brake controller
    • Custom connector end plugs into the built-in port near the dash of your vehicle
    • Other end plugs into the back of your electric brake controller
      • Compatible time-delayed brake controllers: Draw-Tite Activator I (5100), Draw-Tite Activator II (5500), Draw-Tite Activator III (5520) and Tekonsha PowerTrac (39523)
      • Compatible proportional brake controllers: Tekonsha Prodigy (90185), Tekonsha P2 (90885), Tekonsha P3 (90195), Tekonsha Primus IQ (TK90160) and Tekonsha Voyager (39510)


  • Maximum amperage:
    • Stop/turn lights: 4.2 amps per circuit
    • Tail lights: 7.5 amps per circuit
  • 1-Year limited warranty

Installation of Tekonsha T-One Connector

This custom-fit T-One connector plugs into your vehicle's wiring harness, which is located in your rear cargo area. You will have to remove the access panel doors to access this harness. Once you've plugged in the T-connector, run the body harness up to your car battery and connect the wires per the included instructions.

Once installation is complete, the 7-way connector will be stowed beneath your vehicle, near the trailer hitch. A mounting bracket (sold separately) is recommended to keep the connector secure.

It is recommended that you use a small amount of grease on all electrical connections - the plugs on your automobile and the 7-pole connector itself - to help prevent corrosion.

ModuLite Powered Tail Light Converter

A ModuLite power module is built into this T-One connector. Because most trailers run on a 2-wire system - wherein the brake and turn signals are carried on one wire - the separate brake and turn signals from your vehicle's 3-wire system need to be combined so they are compatible with the wiring system of your trailer. This power module functions as a tail light converter to combine the brake and turn signal functions of your automobile so that they run on one wire to properly activate your trailer's tail lights. Note: This will not affect how the tail lights on your vehicle operate.

With a ModuLite, your trailer's lights will be powered without overloading your vehicle's electrical system. Because the module draws power directly from your car's battery and bypasses the electrical routes that are used by a basic wiring harness, there is virtually no draw on your tail light circuits.

Installation of Tekonsha Brake Controller Adapter

This adapter plugs into the 4-pin connector on your vehicle's built-in brake control wiring harness. The harness is located near the steering column, through a grommet in the engine compartment.

This adapter requires no hardwiring. It is designed to plug directly into your electric brake controller for the simplest installation possible. Because there are no wires to connect, installation is not permanent. You can unplug and remove your brake controller at any time and securely stow it away.

22112 Tekonsha Replacement Harness with Brake Control Adapter for Factory Tow Package - 7 Pole - Modu-Lite

Item # 22112

Installation Details 22112 Installation instructions

This Product Fits The Following Vehicles

California residents: click here

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Customer Reviews

Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter - 7 Way Trailer Connector - 22112

Average Customer Rating:  4.7 out of 5 stars   (42 Customer Reviews)

Replace the damaged 7-way, RV-style trailer connector on your vehicle with this T-One harness. ModuLite reduces strain on wiring system. Brake controller adapter plugs in beneath your dash and lets you easily plug in your electric brake controller.

2016 Ram ProMaster 2500

I purchased the wiring kit, brake controller and extra bracket for my 2016 Promaster 118. The install went great. I used another stainless steel bracket to attach the 7 way to the bumper cover. It looks good and totally professional. The brake controller sits just below the fuse box and is out of the way but accessible. I did route my power wires going to the front beneath the van. I drilled a 1/2 inch hole through the rear plastic of the battery box to bring those wires in.

Mark B.


One year later everything is fine.


This is one of the easiest trailer brake & trailer light wiring kits to install. The plug and play connectors makes it a breeze. The video provided matches what you actually have todo identically which made it even better. I was two connectors short but other than that everything I needed was provided!


Good product. Has held up. I had two Curt wiring harnesses fail before installing this one. It's been good through two winters.


Nice products and has worked out very well. etrailer is a good supplier.

2019 Ram ProMaster 2500

Would rate this higher but the instructions are lacking key detail about tapping into the brake pedal wire which is absolutely critical for this to work properly. There is a small red wire that comes off the brake control harness. in the instructions it simply says "connect to negative side of brake switch". which is totally vague and it gives no further details or photos. I had to do some online research work to find out you need to tap into the green and white wire that is above the brake pedal in a factory 4 wire harness. its all the way on the end. connect the red wire to that wire and you are good to go. This should've been explained better in the instructions that come with it as it took a lot of time and headache to figure out on my own.

Dodge Ram Pickup

YES...YES...YES...My Ram Promaster 1500 did not have factory installed Trailer light system. I contacted a nationally recognized trailer/hitch company to install my system and after 7 hours of my wasted time/money, they failed to do it correctly. I had used a similar product to this in the past and it worked well so I ordered this one as I upgraded to electronic brake controller. Came with EVERYTHING needed. Complete instructions. PERFECT PRODUCT...PLUG AND PLAY...Just make sure you order the correct one for your application (4 pin, 5 pin, 7pin) and adapters if needed. I operate in harsh environments of heat, cold, dust, off road... so I also use the dielectric grease on all connections . Wires are also protected by secondary abrasion protection outer wrap...Does not get any better than this. Dont buy cheap knock off wires at your local auto it right, your pulling valuable equipment and have a responsibility to tow safely.


Fit perfect.

by: 04/11/2021
2017 Ram ProMaster 1500

This is the second set of Hitch, wires, and controls. Super easy just as advertised. They come in a reasonable amount of time and always in good condition. I recommend them to friends because I have had a great experience.


Great wiring easy to install and route glad to have videos for any possible issues wish the hitch fit better had to grind down bumper sides in order to get it to fit properly other then that all was as good as I can expect from eteailers good quality and fast reliable products


Everything went perfect from ordering to installation


Fits perfectly and the video of the installation was very helpful.


Extremely Easy install thanks to the great instructions.
Highly recommend

2020 Ram ProMaster 3500

This was easy to install and the length was perfect. It did come short one ring terminal--you will need 4 and it only came with 3.


Just received and not installed yet but in unpacking the harness it feels quality and is/ was a great price for all it does.


Thank you etrailer!


etrailer beat competitors pricing and the product arrived very quickly! Great customer service!

2017 Chevrolet Express Van

The website is easy to look at and explains what you need to know. The delivery took some time but it was because we were waiting on one of the parts. Someone emailed me and offered a different product so that we could get our delivery faster. We didn't need the parts that fast so we just waited for the original part. Overall a great experience.


we have had this installed for about 1 year now with no issues. easy quick install and came with everything we needed


Will was a great help. He promised our parts the next day and we got it. I appreciate his efforts.


Works like it should and was not hard to install. So far no corrosion.

2015 Ram ProMaster 2500

Everthing fit well and it works perfectly.


It worked as expected - no problems.


Very easy to install work great


Product advise was on point and we received the appropriate hitch for our vehicle

2017 Ram ProMaster 1500

Worked out perfect - pie easy

Show More Reviews

See what our Experts say about this Tekonsha Custom Fit Vehicle Wiring

  • 7-Way Trailer Wiring Recommendation for 2014 Dodge ProMaster 1500
    To add a 7-way trailer wiring connector to your 2014 Dodge ProMaster 1500 we have the Tekonsha Kit part # 22112 which will give you basically an OEM 7-way kit confirmed as a fit for your vehicle. This comes with everything you would need to add a 7-way to your vehicle.
    view full answer...
  • Routing Power Wire for Tekonsha 7-Way that Fits 2021 Ram ProMaster 2500
    Routing the power wire of the Tekonsha 7-way kit # 22112 on your 2021 Ram ProMaster 2500 is up to you. You can run it through inside of the vehicle interior or you can run it on the outside like we did in our install video. In our experience we found the outside routing to be easier so that would be what I would go with for you. I attached an install video for this for you to check out.
    view full answer...
  • Is Wiring on Tekonsha Harness 22112 Long Enough for Ram Promaster 3500 Extended
    Yes, the harness included with the # 22112 is long enough to reach from the tail light assemblies up to the battery of your 2018 Ram Promaster 3500 EXT, which has an overall length of 250 inches.
    view full answer...
  • 7-Way Trailer Wiring Recommendation for 2016 Ram ProMaster 1500 without Tow Package
    Yes, the Tekonsha 7-Way part # 22112 that you referenced is a confirmed fit for your 2016 Ram ProMaster 1500 without factory wiring and would be all that you need to install a 7-way on your vehicle.
    view full answer...
  • Will a Separate Wire Need to Be Run and Spliced In for Reverse Light Function
    Yes, you are correct. The Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter # 22112 will provide you with reverse light functionality without having to run and splice in a separate wire for the reverse lights. I have included an installation video that goes over the installation process and you can see that there is not a separate wire for the reverse light functions.
    view full answer...
  • Does Tekonsha 7-Way Kit # 22112 Fit 2014 Dodge ProMaster 2500 Long Wheelbase
    Yes, the Tekonsha 7-way kit part # 22112 that you referenced is a confirmed fit for your 2014 Dodge Promaster 2500 with the 159 inch long wheelbase as well. This will give you a fully functional 7-way.
    view full answer...
  • Parts Needed To Install a 7-Way and Brake Controller On a 2022 Ram ProMaster 3500 No Factory Prep
    The Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter # 22112 will give you the 7-way connector and all the wiring you will need to install a Tekonsha Prodigy P3 Trailer Brake Controller # 90195 on your 2022 Ram ProMaster 3500.
    view full answer...
  • Brake Controller Installation 2018 Ram ProMaster 3500
    The 2018 Ram Promaster isn't prewired for a brake controller, but installing one is a pretty straightforward process. Tekonsha provides a ready made wiring harness/7-way trailer connector as part # 22112 that when combined with the Tekonsha Primus # TK90160 brake controller that you'd already looked at. I've linked you to a full installation video and the install instructions which will walk you step by step through the install process. The video shows a different controller, but the procedure...
    view full answer...
  • Recommended Replacement Trailer Wiring Harness for 2014 Dodge ProMaster 1500 Van
    The Tekonsha Replacement OEM Tow Package Wiring Harness # 22112 that you referenced is intended as an OEM replacement on vehicles that have the factory-installed tow package. If this is what you vehicle's OEM harness looks like it will work fine without generating any messages on your display or requiring dealer attention. However, if your van does NOT have factory wiring you can use one of the three 4-pole harness options shown on the linked page. All of these use powered converters...
    view full answer...
    Image 1 for
  • Complete Trailer Wiring and Brake Controller for a 2017 Ram ProMaster 2500
    We do have the Tekonsha OEM Replacement Vehicle Wiring Harness # 22112 which also comes with an adapter for a Tekonsha or Draw-Tite brake controller. This kit has T-One connects which plug into connection points behind your tail lights and then you route the harness up towards the front of your 2017 Ram ProMaster 2500 for 12V power and to connect your brake controller. A 7-Way is included but if you would also like to have a 4-Way then you can replace the 7-Way connector with the Hopkins...
    view full answer...
  • Is Curt Echo Wireless Compatible With Tekonsha 7-way Connector 22112 On 2020 Ram ProMaster 1500?
    Yes. The Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter - 7 Way Trailer Connector # 22112 you were looking at for your 2020 Ram ProMaster 1500 will work perfectly with the Curt Echo Wireless Trailer Brake Controller # C51180. I included installation videos for both of the products mentioned for you to take a look at.
    view full answer...
  • Trailer Hitch that Fits 2021 Ram Promaster EXT Model
    We do have one hitch that fits your EXT model 2021 Ram Promaster with # e99AR. If you needed a 7-way trailer wiring harness as well you'd want the part # 22112 and you'd be set.
    view full answer...
  • Adding a 7-Way Connector and Brake Controller to a 2014 Ram ProMaster 2500
    In order to install a 7-Way trailer connector and brake controller on your 2014 Ram ProMaster 2500 you will need a couple of items. First you will need to install a wiring harness which will end up being part of the 7-Way connector installation. For that, yes, you can use # 22112 which also comes with the wiring needed to install a brake controller. The only other part you will need is the brake controller. For a brake controller I recommend the Redarc Tow-Pro Elite # RED44FR because...
    view full answer...
  • Parts Needed to Install 7-Way and Brake Controller for 2019 Ram ProMaster 1500
    For your 2019 Ram ProMaster 1500 the 7-way kit part # 22112 is all you need to install a 7-way as well as includes brake controller wiring as well. The wiring is completely compatible with the Redarc Tow Pro Elite part # RED44FR that you referenced as well.
    view full answer...
  • Recommended 7-Way Wiring Harness for Brake Controller on 2017 Ram ProMaster 2500
    For your 2017 Ram ProMaster 2500, I recommend the Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter - 7 Way Trailer Connector # 22112. This will plug into your factory wiring and give you the 7-way as well as the Tekonsha compatible brake controller wiring. I then recommend using the Prodigy P3 # 90195 for the easiest to use controller that gives you a clear LCD screen without codes so you know what is happening in real time without needing your owners manual....
    view full answer...
  • Recommended Brake Controller Wiring Harness for 2019 Ram ProMaster 3500
    For the 2019 Ram ProMaster 3500 there is not a direct wiring harness. If you want to use the P3 # 90195 then you will need to use the kit # ETBC7 to hardwire it. If you don't have the factory tow package, you will also need the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118618. If you want the complete wiring harness that also will include that brake controller wiring I recommend the Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter -...
    view full answer...
  • Will Trailer Connector and Hitch Work Together on 2015 Ram ProMaster 1500?
    Curt hitch # C13295 and connector # 22112 will work together just fine in your 2015 Ram ProMaster 1500. If you were speaking about the mounting of the 7-way on the hitch, then what you would want to do is use the No-Drill Bracket # 18140 and Mounting Bracket # 18138 to mount it to your hitch. I've added links to video reviews of each product for you to take a look at.
    view full answer...
  • Trailer Hitch, Wiring & Brake Controller For 2021 Ram ProMaster 3500
    We can absolutely get you the right parts to add a trailer hitch receiver, wiring, and brake controller to your 2021 Ram ProMaster 3500 without the factory tow package. Here are the exact parts you'll need in order to do that: - Curt Trailer Hitch Receiver # C13295 - Tekonsha OEM Replacement Vehicle Wiring Harness with Brake Controller Adapter - 7 Way Trailer Connector # 22112 - Tekonsha Prodigy P3 Trailer Brake Controller # 90195 The Tekonsha wiring harness, although its title says...
    view full answer...
  • 7-Way Recommendation for a 2006 Dodge Ram 2500 to Bypass Factory TIPM
    I have a solution for you, but the # 22112 would not work on your 2006 Dodge Ram 2500. Instead you would need to start with the part # 118381 as a 4-way. Now if your trailer does not have brakes all you would need is the part # 37185 as an adapter to convert the 4-way to a 7-way. If you do have trailer brakes you would need the # ETBC7 instead of the # 37185 and a brake controller. This kit comes with everything needed to wire up the 7-way and install a brake controller. For a brake...
    view full answer...
  • Will Curt Trailer Hitch Fit a 2017 Ram ProMaster 2500
    The restrictions for the hitches that fit the 2017 Ram ProMaster 2500 only pertain to if it is an EXT model or not. Curt trailer hitch # C13207 does not fit the EXT models. If the step you have installed is the step bumper then there should not be a problem. If it is a side step then you will want to look over the linked instructions for the hitch to see where on the vehicle it installs and if that conflicts with where the step installs. If you do have an EXT model then the comparable...
    view full answer...
  • Towing Capacity of 2020 Ram ProMaster 1500
    The max towing capacity of a 2020 Ram ProMaster 1500 is 6,910 lbs for low roof models with 118" wheelbase, 6,800 lbs for low roof models with 136" wheelbase, and 6,700 lbs for high roof models with 136" wheelbase. These figures apply to both factory and aftermarket hitches. If you don't already have a trailer hitch I recommend the Curt Trailer Hitch Receiver part # C13207 which offers an easy bolt-on install. You'll then need trailer wiring for which I recommend the T-One Vehicle Wiring...
    view full answer...
  • Comparing Trailer Hitch Options for a 2019 Ram ProMaster 2500
    The trailer hitch options for a 2019 Ram ProMaster 2500 can be broken down into two categories, hidden and visible. The hidden options do not have a crosstube under the bumper and the visible option does. The hidden crosstube is harder to install. If you prefer aesthetics over install difficulty then go with the hidden but if you prefer an easy install over aesthetics then go with the visible crosstube. I prefer Curt hitches so part # C13207 for visible or part # C13295 for hidden. The...
    view full answer...
    Image 1 for
  • Trailer Hitch Receiver For 2020 Ram ProMaster 2500 That Works Around In-Use Grounding Bolt
    I have another option for you, but the grounding nut you show in your picture will interfere with the installation of the Curt Trailer Hitch Receiver - Custom Fit - Class III - 2" # C13207 you were looking at, and would need to be relocated. Instead I recommend the Draw-Tite Max-Frame Trailer Hitch Receiver - Custom Fit - Class III - 2" # 75882 which is also confirmed to fit your 2020 Ram ProMaster 2500, but the hitch only goes on the bottom of the frame rails and not the sides so it will...
    view full answer...
    Image 1 for
  • Complete Towing Package for 2020 Ram ProMaster 3500 Hitch, Wiring and Brake Controller
    The Curt Trailer Hitch Receiver Class III - 2" # C13207 is the one I recommend for your 2020 Ram ProMaster 3500 (excluding EXT models). It doesn't require any drilling so installing it is super simple. It's rated to tow up to 6,000 lbs and 600 lbs tongue weight. For a wiring kit that comes with everything you'll need to install a fully functional 7-way connector, the Tekonsha # 22112 is the way to go. You'll simply use the t-connectors to plug into the connection points behind your tail...
    view full answer...
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